Effects of Bacillus subtilis CSL2 on the composition and functional diversity of the faecal microbiota of broiler chickens challenged with Salmonella Gallinarum

Table 1 Pyrosequencing data and diversity indices of the faecal microbiota of broiler chickens

Group*	Diversity indices (Mean ± standard deviation)
Group*	No. of reads^a	OTU	Chao1	Shannon	Simpson	PD
NC (Before)	12,532 ± 6,666	725 ± 420	1,443 ± 752	5.41 ± 1.19	0.92 ± 0.05	48.8 ± 25.75
NC (After)	10824 ± 3,322	712 ± 369	1,555 ± 729	5.79 ± 1.20	0.94 ± 0.04	48.8 ± 21.71
SC (Before)	12,176 ± 8,221	693 ± 447	1,418 ± 938	5.50 ± 0.85	0.93 ± 0.04	45.4 ± 28.49
SC (After)	7701 ± 3,665	421 ± 240	890 ± 482	4.61 ± 1.00	0.85 ± 0.07	30.7 ± 15.04
BT (Before)	8212 ± 4,494	493 ± 274	1,023 ± 574	4.98 ± 1.13	0.88 ± 0.07	36.5 ± 20.07
BT (After)	14,199 ± 5,013	580 ± 254	1,047 ± 360	5.06 ± 1.03	0.90 ± 0.06	36.8 ± 14.35

*Legend: NC, negative control; SC, Salmonella challenged; BT, Bacillus treated; OTU, operational taxonomic unit; PD, phylogenetic distance (whole tree)
^aMean number of raw reads per treatment group. No significant differences (P < 0.05) in alpha diversity were detected between groups using compare_alpha_diversity.py script

ISSN: 2049-1891